Padlock

Claim 1

A padlock comprising; a housing made of a hard material to contain an inner case secured firmly in the housing, a rectangular hollow post extending sidewise from a side wall of the housing and two shackle holes spaced apart in an upper wall of the housing for two ends of a shackle to pass through; a dead bolt being installed in said rectangular hollow post and capable of being rotated by a key, the dead bolt having a semi-circular bottom extending in a cavity in said inner case to touch one of two L-shaped control members; said inner case being secured firmly in said housing and having two spaced apart further shackle holes for two end portions of said shackle to move in and out, a cavity between said two further shackle holes for said two L-shaped control members and an actuating plate to be installed therein; said shackle having two opposite notches in its inside surfaces for receiving two outer ends of lateral portions of said two L-shaped control members; and said two L-shaped control members having their lengthwise portions pinching a coiled spring therebetween, one of said L-shaped control members having an inner surface of its lengthwise portion contacting the semi-circular bottom of said bead bolt, the other of said L-shaped control members having an inner surface of its lengthwise portion facing an upper end of the actuating plate which is bent at an intermediate portion, a lower end of the actuating plate resting on an outer surface of the lengthwise portion of said one of said L-shaped control members, and said actuating plate being rotatable on a pin shaft provided at the intermediate portion as a pivot.